Description from Flora of China
Trees to 30 m tall, deciduous. Branchlets grayish brown, glabrescent, lenticellate; lenticels brownish, rounded. Petiole 1-1.3 cm, glabrous; leaf blade narrowly elliptic-obovate to obovate, (5-)10-20(-30) × 5-14(-16) cm, base cuneate to rounded, apex slightly obtuse to shortly acuminate; secondary veins 10-15 on each side of midvein. Female inflorescences axillary on young shoots; cupules solitary or in fascicles of 2 or 3. Cupule cupular, 1-1.5 × 1.2-2 cm, enclosing ca. 1/2 of nut; bracts ovate-lanceolate, ca. 2 mm, crowded, grayish pubescent. Nut ellipsoid to ovoid, 1.7-2.5 × 1.3-1.8 cm; scar slightly raised; stylopodium ca. 1 mm in diam. Fl. Mar-May, fr. Sep-Nov.
Mixed mesophytic forests; 100-2700 m. Anhui, Gansu, Guangdong, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Liaoning, Shaanxi, Shandong, Shanxi, Sichuan, Yunnan, Zhejiang [Japan, Korea].